CN110710304B

CN110710304B - Method, equipment and system for configuring transmission parameters

Info

Publication number: CN110710304B
Application number: CN201880037378.5A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-02-14
Filing date: 2018-02-14
Publication date: 2020-11-20
Anticipated expiration: 2038-02-14
Also published as: WO2019157721A1; CN110710304A

Abstract

The embodiment of the invention provides a method, equipment and a computer storage medium for configuring transmission parameters; the method comprises the following steps: configuring transmission parameters used in the transmission of a sidelink SL for a target terminal; sending the transmission parameters to the target terminal; the transmission parameters are used for SL transmission by the target terminal based on the configuration of the transmission parameters. Compared with the time-frequency resource for data transmission only configured for the terminal by the base station in the current related V2X technology, the situation of data transmission failure caused by transmission through the SL between incompatible terminals can be avoided by configuring the transmission parameters used for SL transmission of the target terminal.

Description

Method, equipment and system for configuring transmission parameters

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for configuring transmission parameters, and a computer storage medium.

Background

The car networking system adopts a Long Term Evolution (LTE) -Device-to-Device (D2D, Device to Device) -based Sidelink (SL, Sidelink) transmission technology, and is different from a mode that communication data is received or sent through a base station in a traditional LTE system, in the car networking system, terminals communicate directly through a PC5 interface (interface between the terminals), that is, the Sidelink SL, and has higher frequency efficiency and lower transmission delay.

Vehicle networking technology (V2X, Vehicle-to-event) is standardized in the third Generation Partnership Project (3 GPP) Rel-14, defining two modes of transmission: mode 3 and mode 4. In mode 3, the transmission resources of the terminal are allocated by the base station. In mode 4, the terminal determines the transmission resource by listening (sensing) + reserving (reservation).

With the continuous forward progress of the 3GPP project, the standard version of the 3GPP Protocol is also developed from Rel-14 to Rel-15, and in the development process of the standard version of the 3GPP Protocol, a new feature (feature) that is not backward compatible is usually introduced, and taking the standard version Rel-15 of the 3GPP Protocol as an example, a feature (feature) that is not compatible with the Rel-14 version, such as QAM (Quadrature Amplitude Modulation), transmit diversity, and Packet Data Convergence Protocol (PDCP) duplicate transmission, is introduced. The incompatible feature (feature) may cause the data to be transmitted abnormally when the data is transmitted between the terminals conforming to different protocol versions through the PC5 interface, i.e., the sidelink SL.

Disclosure of Invention

Embodiments of the present invention are directed to a method, an apparatus, and a computer storage medium for configuring transmission parameters.

The technical scheme of the embodiment of the invention can be realized as follows:

in a first aspect, an embodiment of the present invention provides a method for configuring a transmission parameter, where the method includes:

configuring transmission parameters used in the transmission of a sidelink SL for a target terminal;

sending the transmission parameters to the target terminal; the transmission parameters are used for SL transmission by the target terminal based on the configuration of the transmission parameters.

In a second aspect, an embodiment of the present invention provides a method for configuring transmission parameters, where the method is applied to a terminal device, and the method includes:

receiving transmission parameters used in the transmission of the sidelink SL;

and carrying out SL transmission based on the configuration of the transmission parameter.

In a third aspect, an embodiment of the present invention provides a network device, including a configuration part and a sending part; wherein the content of the first and second substances,

the configuration part is used for configuring transmission parameters used when the target terminal configures side link SL transmission;

the transmitting part is configured to transmit the transmission parameters to the target terminal; the transmission parameters are used for SL transmission by the target terminal based on the configuration of the transmission parameters.

In a fourth aspect, an embodiment of the present invention provides a network device, including: a first network interface, a first memory and a first processor; wherein the content of the first and second substances,

the first network interface is used for receiving and sending signals in the process of receiving and sending information with other external network elements;

the first memory for storing a computer program operable on the first processor;

the first processor is configured to, when running the computer program, perform the steps of the method of the first aspect.

In a fifth aspect, an embodiment of the present invention provides a terminal device, including: a receiving section and a transmitting section, wherein,

the receiving part is configured to receive transmission parameters used in side link SL transmission;

the transmission section is configured to perform SL transmission based on the configuration of the transmission parameter.

In a sixth aspect, a terminal device provided in an embodiment of the present invention includes: a second network interface, a second memory, and a second processor;

the second network interface is used for receiving and sending signals in the process of receiving and sending information with other external network elements;

the second memory for storing a computer program operable on a second processor;

the second processor is configured to, when running the computer program, perform the steps of the method of the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer storage medium, where the computer storage medium stores a program for configuring transmission parameters, and the program for configuring transmission parameters implements the steps of the method in the first aspect or the second aspect when executed by at least one first processor.

The embodiment of the invention provides a method, equipment and a computer storage medium for configuring transmission parameters; the network side configures the SL transmission parameters to the terminal, thereby avoiding the situation that data can not be normally transmitted due to incompatible characteristics between terminals conforming to different protocol versions.

Drawings

FIG. 1 is a schematic view of a scenario of mode 3 in a vehicle networking;

FIG. 2 is a schematic view of a scenario of mode 4 in the Internet of vehicles;

fig. 3 is a flowchart illustrating a method for configuring transmission parameters according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating a method for configuring transmission parameters according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a network device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a specific hardware structure of a network device according to an embodiment of the present invention;

fig. 7 is a schematic composition diagram of a terminal device according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a specific hardware structure of a terminal device according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and aspects of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings.

In order to facilitate understanding of the technical solutions of the embodiments of the present invention, the following respectively explains the mode 3 and the mode 4 in the car networking.

Mode 3: as shown in fig. 1, transmission resources of the in-vehicle terminal are allocated by a base station (e.g., an evolved NodeB (eNB) in LTE or a 5G base station gNB in a New Radio (NR) system), and specifically, the base station issues a control message for indicating Grant (Grant) resources to the in-vehicle terminal through a Downlink (DL); then, the in-vehicle terminal transmits data to the SL according to the resource allocated by the base station. In mode 3, the base station may allocate a resource for single transmission to the in-vehicle terminal, or may allocate a resource for semi-static transmission to the terminal.

Mode 4: as shown in fig. 2, the vehicle-mounted terminal selects resources and transmits data in a listening + reservation manner. The vehicle-mounted terminal acquires an available transmission resource set in the resource pool in an intercepting mode, and randomly selects one resource from the transmission resource set to transmit data. Because the service in the car networking system has a periodic characteristic, the vehicle-mounted terminal usually adopts a semi-static transmission mode, that is, after the vehicle-mounted terminal selects one transmission resource, the resource can be continuously used in a plurality of transmission cycles, so that the probability of resource reselection and resource conflict is reduced. The vehicle-mounted terminal can carry the information of the reserved secondary transmission resource in the control information transmitted at this time, so that other terminals can judge whether the resource is reserved and used by the vehicle-mounted terminal by detecting the control information of the vehicle-mounted terminal, and the aim of reducing resource conflict is fulfilled.

It should be noted that, in LTE-V2X, mode 3 is used to indicate that the transmission resource of the Vehicle-mounted terminal is allocated by the base station, and mode 4 indicates that the transmission resource of the Vehicle-mounted terminal is selected by the terminal, so that a New transmission mode may be defined in a New wireless-Vehicle networking technology (NR-V2X, New Radio-Vehicle-to-event), which is not limited in the present invention.

Taking the mode 3 in the above mode architecture of the car networking as an example, the time-frequency resources used when data transmission is performed between terminals through the sidelink SL, that is, the PC5 interface, are allocated by the base station, and with the continuous development of 3GPP protocol versions, incompatible data transmission modes may occur between terminals supporting different versions of communication protocols. For example, terminal 1 supports 3GPP protocol version Rel-14, and terminal 2 supports 3GPP protocol version Rel-15, so it can be known that terminal 2 can support features such as 64QAM, transmit diversity, PDCP duplication, etc., which cannot be backward compatible, but terminal 1 does not support them, so when terminal 2 uses the above features which cannot be backward compatible to perform data transmission with terminal 1, data transmission fails due to the non-support of terminal 1, and therefore, the network side needs to configure transmission parameters of terminal 2 during SL transmission, thereby avoiding that data transmission cannot be performed normally between terminal 1 and terminal 2.

Based on this, the following examples of the present application are proposed. It can be understood that all technical solutions of the embodiments of the present invention are not only applicable to the car networking system, but also applicable to other end-to-end communication systems, the terminal in the embodiments of the present invention may be a vehicle-mounted terminal, a handheld terminal, a Personal Digital Assistant (PDA), a wearable terminal, and the like, and the network in the embodiments of the present invention may be an NR network, an LTE network, and the like.

Example one

Referring to fig. 3, it shows a method for configuring transmission parameters, which may be applied to a network device in device-to-device D2D, and even to a network device in V2X technology, and may specifically be a base station in the foregoing description, and the method includes:

s301: configuring transmission parameters used in the transmission of a sidelink SL for a target terminal;

s302: sending the transmission parameters to the target terminal; the transmission parameters are used for SL transmission by the target terminal based on the configuration of the transmission parameters.

In the method for configuring transmission parameters provided in this embodiment, the network device configures, for the target terminal, transmission parameters used in sidelink transmission, and sends the transmission parameters to the target terminal through the configuration information. Compared with the time-frequency resource for data transmission only configured for the terminal by the base station in the current related V2X technology, the situation of data transmission failure caused by transmission through the SL between incompatible terminals can be avoided by configuring the transmission parameters used for SL transmission of the target terminal.

For the technical solution shown in fig. 3, in a possible implementation manner, the transmission parameter may include: modulation and Coding Scheme (MCS) used by the target terminal when transmitting through SL, and/or indication information of transmission mode used by the target terminal when transmitting through SL. It should be noted that the transmission parameters belong to typical transmission parameters related to a 3GPP protocol version or a service type, and it can be understood that, with the continuous development of the 3GPP protocol, the subsequent transmission parameters related to the protocol version or the service type may still be applicable to the technical solution of the embodiment of the present invention, and are not described herein again.

Specifically, the information indicating the transmission method used by the target terminal when transmitting the information via the SL includes:

and the indication information is used for indicating the target terminal to transmit by adopting a single antenna port when the target terminal transmits the signal through the SL, or indicating the target terminal to transmit by adopting a transmit diversity mode when the target terminal transmits the signal through the SL.

For this embodiment, the transmission parameters are used for the terminal to implement SL data transmission. It should be noted that, the 3GPP protocol versions supported by the terminal are different, and when the terminal performs SL data transmission, the 3GPP protocol versions supported by the service types of the transmission data are different. In the protocols of different versions, a feature that cannot be backward-compatible is introduced into the new version, that is, when a terminal supporting the new protocol version transmits a SL, due to the existence of the feature that cannot be backward-compatible, data transmission with a terminal supporting the old protocol version cannot be performed. For example, in the content of the evolution V2X (eV2X, evolved V2X) of the 3GPP Rel-15 protocol, 64QAM and transmit diversity are introduced, then, a terminal supporting the Rel-15 protocol version transmits data to be transmitted on the SL in a transmit diversity mode after being modulated by 64QAM, and since the features of the Rel-15 regarding 64QAM and transmit diversity cannot be backward compatible, the terminal supporting the Rel-14 protocol version cannot receive the data to be transmitted, thereby causing transmission failure between terminals. Based on this, in the specific configuration process of the transmission parameters, the transmission parameters need to be determined by combining the 3GPP protocol version supported by the target terminal and the data service type for SL transmission. The 3GPP protocol version supported by the terminal at present may be Rel-14 or Rel-15, and it can be understood that the 3GPP protocol version that the terminal can support subsequently may still be applicable to the technical solution of the embodiment of the present invention, which is not described herein again.

Based on the above description, the transmission parameters used when configuring sidelink transmission for the target terminal in this embodiment include:

and configuring transmission parameters corresponding to the data type for the target terminal based on the protocol version information supported by the target terminal and/or the potential data type needing SL transmission of the target terminal.

Specifically, for the lowest protocol version that can be supported by a data category and the protocol version supported by a target terminal being the same or different, the configuring, for the target terminal, a transmission parameter corresponding to the data category based on the protocol version information supported by the target terminal and/or the data category potentially required to be transmitted by using SL may include the following two cases in a specific implementation process:

situation one

And configuring the transmission parameters corresponding to the lowest protocol version for the target terminal, wherein the lowest protocol version capable of supporting the data category is lower than the protocol version supported by the target terminal.

For example, when the target terminal can support the Rel-15 version, for basic security type messages that can be supported by the Rel-14 protocol version, such as a CAM (Cooperative Awareness Message) or a Distributed Environment Notification Message (DENM), the network device may configure transmission parameters corresponding to the Rel-14 version for the target terminal for such traffic messages, for example, indication information transmitted by using a single antenna port, or indication information encoded by using a Quadrature Phase Shift Keying (QPSK) or an MCS corresponding to 16 QAM.

Situation two

And configuring transmission parameters corresponding to the protocol version supported by the target terminal for the target terminal, wherein the lowest protocol version capable of supporting the data category is the same as the protocol version supported by the target terminal.

For example, when the target terminal can support the Rel-15 version, for a non-secure type entertainment message such as entertainment information that the Rel-15 protocol version can support and the Rel-14 version cannot support, the network device may configure transmission parameters corresponding to the Rel-15 version, for example, indication information transmitted in a transmit diversity manner or indication information encoded in an MCS corresponding to 64QAM, for the target terminal for such a service message.

After the above-mentioned configuration and specific contents for the transmission parameters are described, the transmission parameters need to be sent to the target terminal, and based on this, the transmission may be performed in the following three exemplary manners in the technical solution shown in fig. 3.

Example 1

In this example, the sending the transmission parameter to the target terminal includes:

and loading the transmission parameters in Downlink Control Information (DCI) and sending the DCI to the target terminal through a Physical Downlink Control Channel (PDCCH).

Specifically, the loading the transmission parameters in the downlink control information DCI includes:

indicating the transmission parameters by information bits in the DCI; alternatively, the first and second electrodes may be,

carrying the transmission parameters through a scrambling sequence for scrambling the DCI; alternatively, the first and second electrodes may be,

and carrying the transmission parameters through a mask sequence for performing a masking operation on the DCI.

It is to be understood that the network device may additionally set an information bit field in the DCI to directly explicitly indicate the transmission parameter. In addition, in order to avoid a change of a DCI field structure, the transmission parameter may be implicitly indicated based on a DCI related operation, and it should be noted that, in general, the network device performs channel coding after performing operations such as scrambling and masking on the DCI, and finally transmits the DCI through the PDCCH. Based on the above description, the transmission parameter information may be implicitly indicated by different masks and scrambling sequences. For example, the network device may define a first correspondence relationship indicating a correspondence relationship between a scrambling sequence for scrambling DCI and a transmission parameter; or, the network device also defines a second corresponding relationship indicating a corresponding relationship between a mask sequence for performing a masking operation on the DCI and the transmission parameter, so that based on any one of the two corresponding relationships, the transmission parameter can be carried by the scrambling sequence for performing the scrambling operation on the DCI or the mask sequence for performing the masking operation on the DCI.

Example two

and carrying the transmission parameters in a DeModulation Reference Signal (DMRS) of a downlink control channel (PDCCH), and sending the DMRS to the target terminal through the PDCCH.

Specifically, the loading the transmission parameters in a demodulation reference signal DMRS of a downlink control channel PDCCH includes:

carrying transmission parameters in a root sequence of a demodulation reference signal (DMRS) of the PDCCH, and/or cyclic shift, and/or an Orthogonal Cover Code (OCC).

For an example, DCI transmitted using PDCCH is used to carry transmission parameters, whereas in this example, the transmission parameters may be transmitted using DMRS of PDCCH. Specifically, the transmission parameters may be carried in a root sequence of a demodulation reference signal DMRS of the PDCCH, and/or a cyclic shift, and/or an orthogonal cover code OCC. For example, the network device may define a third correspondence indicating a correspondence between a root sequence of a DMRS of the PDCCH and the transmission parameters; or, the network device also defines a fourth correspondence, where the fourth correspondence indicates a correspondence between a cyclic shift of a DMRS of the PDCCH and the transmission parameter; alternatively, the network device may further define a fifth correspondence relationship indicating a correspondence relationship between the orthogonal cover code OCC of the DMRS of the PDCCH and the transmission parameter.

Based on any one or more of the three corresponding relations, the network device can carry the transmission parameters through at least one of the root sequence of the DMRS of the PDCCH, the cyclic shift, and the orthogonal cover code OCC.

Example three

and carrying the transmission parameters in a Radio Resource Control (RRC) signaling and sending the RRC signaling to the target terminal.

Specifically, the MCS and/or the transmission mode in the transmission parameter may be bound to a service type of data, so that the radio resource control RRC signaling also carries a data category corresponding to the transmission parameter. For example, the network configures transmission parameters, which are bound to the type of service or the ID of the service, to the terminal through RRC signaling.

Example two

Based on the same inventive concept of the foregoing embodiment, referring to fig. 4, a method for configuring transmission parameters provided in an embodiment of the present invention is shown, where the method is applied to a terminal device, and the method includes:

s401: receiving transmission parameters used in the transmission of the sidelink SL;

s402: and carrying out SL transmission based on the configuration of the transmission parameter.

For the technical solution shown in fig. 4, in a possible implementation manner, the transmission parameter includes a modulation and coding scheme MCS used when transmitting through the SL and/or indication information of a transmission method used when transmitting through the SL.

It should be noted that the transmission parameters belong to typical transmission parameters related to a 3GPP protocol version or a service type, and it can be understood that, with the continuous development of the 3GPP protocol, the subsequent transmission parameters related to the protocol version or the service type may still be applicable to the technical solution of the embodiment of the present invention, and are not described herein again.

Specifically, the information indicating the transmission scheme used for the SL transmission includes:

the indication information is used for indicating that the single antenna port is adopted for transmission when the SL is transmitted, or the indication information is used for indicating that the transmission diversity mode is adopted for transmission when the SL is transmitted.

Based on the transmission parameters sent in the three exemplary manners described in the first embodiment, correspondingly, in this embodiment, the transmission parameters used in the transmission of the receiving-side uplink SL may also be received in the three exemplary manners correspondingly.

Example 1

In this example, the transmission parameters used for the receiving side uplink SL transmission include:

receiving downlink control information DCI carrying the transmission parameters through a physical downlink control channel PDCCH;

and acquiring the transmission parameters carried by the DCI by analyzing the DCI.

Specifically, the obtaining of the transmission parameters carried by the DCI by parsing the DCI includes:

analyzing the information bits in the DCI to obtain the transmission parameters;

or, analyzing a scrambling code sequence for scrambling code operation on the DCI to obtain the transmission parameters;

or, analyzing a mask sequence for performing a masking operation on the DCI, and obtaining the transmission parameter.

It is to be understood that, according to the description of the first embodiment in the corresponding first example, for example, the network device may additionally set an information bit field in the DCI to directly explicitly indicate the transmission parameter; therefore, the terminal device can obtain the transmission parameters by parsing the information bits.

In addition, the network device may also implicitly indicate the transmission parameter, for example, the network device may define a first correspondence relationship indicating a correspondence relationship between a scrambling sequence for scrambling DCI and the transmission parameter; or, the network device also defines a second corresponding relationship indicating a corresponding relationship between a mask sequence for performing a masking operation on the DCI and the transmission parameter, so that, when the terminal knows either of the two corresponding relationships, the terminal can analyze the scrambling sequence for performing a scrambling operation on the DCI, or analyze the mask sequence for performing a masking operation on the DCI to obtain the transmission parameter.

Example two

and carrying the transmission parameters in a demodulation reference signal (DMRS) of a downlink control channel (PDCCH) and sending the DMRS to the target terminal through the PDCCH.

Receiving a demodulation reference signal (DMRS) carrying the transmission parameters through a Physical Downlink Control Channel (PDCCH);

and obtaining the transmission parameters carried by the DMRS by analyzing the DMRS.

Specifically, the obtaining of the transmission parameters carried by the DMRS by resolving the DMRS includes:

and analyzing a root sequence, and/or cyclic shift, and/or an Orthogonal Cover Code (OCC) of the DMRS to obtain the transmission parameters.

It can be understood that, in addition to using the DCI sent by the PDCCH to carry the transmission parameters, the network device may also send the transmission parameters using the DMRS of the PDCCH, for example, the network device may define a third correspondence relationship, where the third correspondence relationship indicates a correspondence relationship between a root sequence of the DMRS of the PDCCH and the transmission parameters; or, the network device also defines a fourth correspondence, where the fourth correspondence indicates a correspondence between a cyclic shift of a DMRS of the PDCCH and the transmission parameter; alternatively, the network device may further define a fifth correspondence relationship indicating a correspondence relationship between the orthogonal cover code OCC of the DMRS of the PDCCH and the transmission parameter. And after knowing any one or more of the three corresponding relations, the terminal can obtain the transmission parameters by analyzing at least one of a root sequence, a cyclic shift and an Orthogonal Cover Code (OCC) of the DMRS of the PDCCH.

Example three

receiving a Radio Resource Control (RRC) signaling carrying the transmission parameters;

and acquiring the transmission parameters carried by the RRC signaling by analyzing the RRC signaling.

EXAMPLE III

Based on the same inventive concept of the foregoing embodiment, referring to fig. 5, it shows a network device 50 provided by the embodiment of the present invention, which includes a configuration part 501 and a sending part 502; wherein the content of the first and second substances,

the configuration part 501 is configured to configure transmission parameters used when the target terminal configures sidelink SL transmission;

the transmitting part 502 is configured to transmit the transmission parameters to the target terminal; the transmission parameters are used for SL transmission by the target terminal based on the configuration of the transmission parameters.

In the above scheme, the transmission parameters include a modulation and coding scheme MCS used when the target terminal transmits over SL and/or indication information of a transmission mode used when the target terminal transmits over SL.

In the above solution, the indication information of the transmission mode used by the target terminal when transmitting through SL includes:

In the above scheme, the sending part 502 is configured to carry the transmission parameters in the DCI, and send the DCI to the target terminal through a PDCCH.

In the above scheme, the sending part 502 is configured to:

In the above scheme, the sending part 502 is configured to: and carrying the transmission parameters in a root sequence, and/or cyclic shift, and/or an Orthogonal Cover Code (OCC) of a demodulation reference signal (DMRS) of the PDCCH.

In the above scheme, the sending part 502 is configured to:

In the above scheme, the RRC signaling also carries a data type corresponding to the transmission parameter.

In the above scheme, the configuration section 501 is configured to:

and configuring the transmission parameters corresponding to the protocol version supported by the target terminal for the target terminal, wherein the lowest protocol version capable of supporting the data category is the same as the protocol version supported by the target terminal.

It is understood that the network device 50 in this embodiment may be a network device applied to the device-to-device D2D, and may even be a network device applied to the V2X technology, and specifically may be a base station in the foregoing description. In addition, in this embodiment, a "part" may be a part of a circuit, a part of a processor, a part of a program, software, or the like, and may be a unit, or may be a module, or may be non-modular.

In addition, each component in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware or a form of a software functional module.

Based on the understanding that the technical solution of the present embodiment essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Accordingly, the present embodiment provides a computer storage medium storing a program for configuring transmission parameters, wherein the program for configuring transmission parameters implements the steps of the method according to the first embodiment when executed by at least one processor.

Based on the network device 50 and the computer storage medium, referring to fig. 6, it shows a network device 50 provided by an embodiment of the present invention, including: a first network interface 601, a first memory 602, and a first processor 603; the various components are coupled together by a bus system 604. It is understood that the bus system 604 is used to enable communications among the components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 604 in fig. 6. Wherein the content of the first and second substances,

the first network interface 601 is configured to receive and transmit signals in a process of receiving and transmitting information with other external network elements;

a first memory 602 for storing a computer program capable of running on the first processor 603;

a first processor 603 configured to, when running the computer program, perform:

It will be appreciated that the first memory 602 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The first memory 602 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The first processor 603 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the first processor 603. The first Processor 603 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the first memory 602, and the first processor 603 reads the information in the first memory 602, and completes the steps of the method in combination with the hardware thereof.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Specifically, when the first processor 603 in the network device 60 is further configured to run the computer program, the method steps described in the first embodiment are executed, which is not described herein again.

Example four

Based on the same inventive concept of the foregoing embodiment, referring to fig. 7, it shows a composition of a terminal device 70 provided by the embodiment of the present invention, which includes: a receiving part 701 and a transmitting part 702, wherein the receiving part 701 is configured to receive a transmission parameter used in the transmission of the side link SL;

the transmission section 702 is configured to perform SL transmission based on the configuration of the transmission parameters.

In the above scheme, the transmission parameter includes a modulation and coding scheme MCS used when transmitting through the SL and/or indication information of a transmission mode used when transmitting through the SL.

In the above scheme, the indication information of the transmission scheme used in the SL transmission includes:

In the above scheme, the receiving part 701 is configured to:

In the above scheme, the receiving section 701 is configured to:

In the above scheme, the receiving part 701 is configured to:

It can be understood that the terminal device 70 according to the present embodiment is a terminal device in a D2D network architecture, and may even be a terminal device in a V2X network architecture.

In addition, the present embodiment provides a computer storage medium, which stores a program for configuring transmission parameters, and when the program for configuring transmission parameters is executed by at least one processor, the method of the second embodiment is implemented. For specific description of the computer storage medium, refer to the description in the foregoing third embodiment, and are not repeated here.

Based on the terminal device 70 and the computer storage medium, referring to fig. 8, a specific hardware composition of a terminal device 80 provided by the embodiment of the present invention is shown, which includes: a second network interface 801, a second memory 802, and a second processor 803; the various components are coupled together by a bus system 804. It is understood that the bus system 804 is used to enable communications among the components. The bus system 804 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 804 in FIG. 8. Wherein the content of the first and second substances,

the second network interface 801 is configured to receive and transmit signals in a process of receiving and transmitting information with other external network elements;

a second memory 802 for storing a computer program capable of running on the second processor 803;

a second processor 803, configured to, when running the computer program, perform:

receiving transmission parameters used in the transmission of the sidelink SL;

It can be understood that, in this embodiment, components in the specific hardware structure of the terminal device 70 are similar to corresponding components in the foregoing technical solution, and are not described herein again.

Specifically, the second processor 803 in the terminal device 70 is further configured to execute the steps of the method in the second embodiment when running the computer program, which is not described herein again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Industrial applicability

In the embodiment of the invention, the network equipment configures the transmission parameters adopted during the sidelink transmission aiming at the target terminal and sends the transmission parameters to the target terminal through the configuration information. Compared with the time-frequency resource for data transmission only configured for the terminal by the base station in the current related V2X technology, the situation of data transmission failure caused by transmission through the SL between incompatible terminals can be avoided by configuring the transmission parameters used for SL transmission of the target terminal.

Claims

1. A method for configuring transmission parameters, the method being applied to a network device, the method comprising:

sending the transmission parameters to the target terminal; the transmission parameters are used for SL transmission of the target terminal based on the configuration of the transmission parameters;

the configuring of the transmission parameters used in the sidelink transmission for the target terminal includes:

2. The method according to claim 1, wherein the transmission parameters include a Modulation and Coding Scheme (MCS) used by the target terminal when transmitting through SL and/or indication information of a transmission mode used by the target terminal when transmitting through SL.

3. The method of claim 2, wherein the information indicating the transmission mode used by the target terminal when transmitting the information via SL comprises:

4. The method according to any one of claims 1 to 3, wherein the sending the transmission parameters to the target terminal comprises:

5. The method according to claim 4, wherein the loading the transmission parameters in Downlink Control Information (DCI) comprises:

6. The method according to any one of claims 1 to 3, wherein the sending the transmission parameters to the target terminal comprises:

7. The method of claim 6, wherein the loading the transmission parameters in a demodulation reference signal (DMRS) of a downlink control channel (PDCCH) comprises:

and carrying the transmission parameters in a root sequence, and/or cyclic shift, and/or an Orthogonal Cover Code (OCC) of a demodulation reference signal (DMRS) of the PDCCH.

8. The method according to any one of claims 1 to 3, wherein the sending the transmission parameters to the target terminal comprises:

9. The method according to claim 8, wherein the radio resource control RRC signaling further carries a data category corresponding to the transmission parameter.

10. The method according to claim 1, wherein the configuring, for the target terminal, transmission parameters corresponding to the data category based on the protocol version information supported by the target terminal and/or the data category potentially to be transmitted by using SL by the target terminal includes:

11. The method according to claim 1, wherein the configuring, for the target terminal, transmission parameters corresponding to the data category based on the protocol version information supported by the target terminal and/or the data category potentially to be transmitted by using SL by the target terminal includes:

12. A method for configuring transmission parameters, the method being applied to a terminal device, the method comprising:

receiving transmission parameters used in the transmission of the sidelink SL;

performing SL transmission based on the configuration of the transmission parameters; wherein the content of the first and second substances,

the transmission parameters are transmission parameters corresponding to data types configured for the terminal equipment by the network equipment based on protocol version information supported by the terminal equipment and/or potential data types needing SL transmission by the terminal equipment.

13. The method according to claim 12, wherein the transmission parameters include Modulation and Coding Scheme (MCS) used in SL transmission and/or indication information of transmission mode used in SL transmission.

14. The method according to claim 13, wherein the information indicating the transmission method used in the SL transmission includes:

15. The method according to any of claims 12 to 14, wherein the transmission parameters used in the receive side uplink (SL) transmission comprise:

16. The method of claim 15, wherein obtaining the transmission parameters carried by the DCI by parsing the DCI comprises:

17. The method according to any of claims 12 to 14, wherein the transmission parameters used in the receive side uplink (SL) transmission comprise:

the transmission parameters are loaded in a demodulation reference signal (DMRS) of a downlink control channel (PDCCH), and are sent to the terminal equipment through the PDCCH;

18. The method of claim 17, wherein the obtaining the transmission parameters carried by the DMRS by resolving the DMRS comprises:

and analyzing the root sequence, and/or cyclic shift, and/or Orthogonal Cover Code (OCC) of the DMRS to obtain the transmission parameters.

19. The method according to any of claims 12 to 14, wherein the transmission parameters used in the receive side uplink (SL) transmission comprise:

20. The method according to claim 19, wherein the radio resource control RRC signaling further carries a data category corresponding to the transmission parameter.

21. A network device includes a configuration section and a transmission section; wherein the content of the first and second substances,

the configuration part is configured to configure transmission parameters corresponding to data types for a target terminal based on protocol version information supported by the target terminal and/or the potential data types needing SL transmission of the target terminal;

the transmitting part is configured to transmit the transmission parameters to the target terminal; the transmission parameters are used for the target terminal to perform side link SL transmission based on the configuration of the transmission parameters.

22. The network device according to claim 21, wherein the transmission parameters include a Modulation and Coding Scheme (MCS) used when the target terminal transmits over a SL and/or indication information of a transmission mode used when the target terminal transmits over a SL.

23. The network device of claim 22, wherein the information indicating the transmission mode used by the target terminal when transmitting via SL includes:

24. The network device according to any of claims 21 to 23, wherein the transmitting part is configured to carry the transmission parameters in downlink control information DCI and transmit the DCI to the target terminal through a physical downlink control channel PDCCH.

25. The network device of claim 24, wherein the transmitting portion is configured to:

26. The network device of any of claims 21 to 23, wherein the transmitting portion is configured to: and carrying the transmission parameters in a demodulation reference signal (DMRS) of a downlink control channel (PDCCH) and sending the DMRS to the target terminal through the PDCCH.

27. The network device of claim 26, wherein the transmitting portion is configured to: and carrying the transmission parameters in a root sequence, and/or cyclic shift, and/or an Orthogonal Cover Code (OCC) of a demodulation reference signal (DMRS) of the PDCCH.

28. The network device of any of claims 21 to 23, wherein the transmitting portion is configured to: and carrying the transmission parameters in a Radio Resource Control (RRC) signaling and sending the RRC signaling to the target terminal.

29. The network device of claim 28, wherein the radio resource control RRC signaling further carries a data category corresponding to the transmission parameter.

30. The network device of claim 29, wherein the configuration section is configured to: and configuring the transmission parameters corresponding to the lowest protocol version for the target terminal, wherein the lowest protocol version capable of supporting the data category is lower than the protocol version supported by the target terminal.

31. The network device of claim 30, wherein the configuration section is configured to:

32. A terminal device, comprising: a receiving section and a transmitting section, wherein,

the transmission part is configured to perform SL transmission based on the configuration of the transmission parameters; wherein the content of the first and second substances,

33. The terminal device of claim 32, wherein the transmission parameters include a Modulation and Coding Scheme (MCS) used for transmission via SL and/or an indication of a transmission mode used for transmission via SL.

34. The terminal device of claim 33, wherein the information indicating the transmission scheme used for the SL transmission comprises:

35. The terminal device of any of claims 32 to 34, wherein the receiving section is configured to:

36. The terminal device of claim 35, wherein the receiving section is configured to:

37. The terminal device of any of claims 32 to 34, wherein the receiving section is configured to:

the transmission parameters are loaded in a demodulation reference signal (DMRS) of a downlink control channel (PDCCH), and are transmitted to a target terminal through the PDCCH;

38. The terminal device of claim 37, wherein the receiving portion is configured to: and analyzing the root sequence, and/or cyclic shift, and/or Orthogonal Cover Code (OCC) of the DMRS to obtain the transmission parameters.

39. The terminal device of any of claims 32 to 34, wherein the receiving section is configured to: receiving a Radio Resource Control (RRC) signaling carrying the transmission parameters; and acquiring the transmission parameters carried by the RRC signaling by analyzing the RRC signaling.

40. The terminal device according to claim 39, wherein the Radio Resource Control (RRC) signaling further carries a data category corresponding to the transmission parameter.

41. A network device, comprising: a first network interface, a first memory and a first processor; the first network interface is used for receiving and sending signals in the process of receiving and sending information with other external network elements;

the first processor, when executing the computer program, is configured to perform the steps of the method of any of claims 1 to 11.

42. A terminal device, comprising: a second network interface, a second memory, and a second processor; the second network interface is used for receiving and sending signals in the process of receiving and sending information with other external network elements;

the second processor, when executing the computer program, is configured to perform the steps of the method of any of claims 12 to 20.

43. A computer storage medium storing a program for configuring transmission parameters, which when executed by at least one processor implements the steps of the method of any one of claims 1 to 11 or any one of claims 12 to 20.